Spray gun adapter



Aug. 18, 1936. J. L. CUNNINGHAM 2,051,518 SPRAY GUN ADAPTER Filed Oct.28, 1955 0 IIIIIIII I 1/ Patented Aug. 18, 1936 EJNlT STATES SPRAY GUNADAPTER James L. Cunningham,

Chicago, 11., assignor to Sherwin-Williams 00., Cleveland, Ohio, acorporation of Ohio Application October 28, 1935, Serial No. 46,981

4 Claims.

Spray guns are in common use in automobile repair shops and variousother places for spraying paints, lacquers, and other materials upon thesurfaces to be finished or refinished. In repair shops particularly, alarge number of colors are required to be kept in stock and when anyparticular color is needed a quantity of the material is poured from thecan in which it comes from the factory into the receptacle of the spraygun. The-gun is then attached to the receptacle and the material issprayed as desired. When that particular job is finished, the materialre- 'maining in the receptacle is poured back into the can and thereceptacle is required to be cleaned out before another color can beused. All of this results in a considerable loss in both time andspraying material.

The purpose of my present invention is to obviate these losses byproviding an adapter by means of which a spray gun may be attacheddirectly to the can or container in which the material to be sprayed isreceived. When any particular color is required the top of the can issimply removed, the adapter is applied to the can and the spray gun isthen attached to the adapter, whereupon the material may be sprayeddirectly from the can. When the job is finished, the gun and adapter areremoved and the can is covered and set away without loss of material ortime required for cleaning. By reason of this adapter one spray gun maybe used repeatedly with any number of cans of material with aconsiderable saving in material and also in time for the user.

To facilitate an understanding of my invention, I have illustrated onthe accompanying drawing preferredembodiments thereof from an inspectionof which, in connection with the following description, many of theinherent advantages of my invention should be understood andappreciated.

Referring to the drawing,

Fig. 1 is a side elevation exemplifying my adaptor applied to acontainer and a spray gun attached thereto;

Fig. 2 is a sectional view on the line 2-2 of Fig.

Fig. 3 is a fragmentary sectional view on the line 33 of Fig. 1;

Fig. 4 is a fragmentary side elevation showing one of the adapterlocking devices;

Fig. 5 is a plan view of a modified form of my invention; and

Fig. 6 is a sectional view on the line Fig. 5.

Referring first to Figs. 1 to 4, inclusive, reference character 1indicates a container of the pouring type, such as is disclosed inUnited States Patent No. 1,997,291 Wardly extending pouring throat 8shaped as illustrated in Fig. 3.

My adapter for this type of container comprises a member 9 ofsubstantially cylindrical shape provided on its lower face with anupwardly ex tending groove I adapted to'receive the upwardly extendingneck of the can, the inner wall of the groove being proportioned tosnugly fit within the throat of the neck so as to practically precludeleakage therebetween. If preferred, a gasket I2 may be positioned in thegroove to engage the upper perimeter of the can neck to insure againstleakage. Suitable means are provided for locking or otherwise attachingthe adapter member to the container and for illustrative purposes I haveshown such means as comprising a plurality of cam levers l3 fulcrumed atM between laterally extending ears I5 so that when the levers are swunginto the position shown in Figs. 1, 4, and 5 their cam portions will beengaged beneath the rim of the container neck so as to lock the adaptermember securely to the container.

The adapter is also provided with laterally extending lugs or pintles l6adapted for detachable connection with the attaching arms ll of a spraygun indicated generally by reference character l8, the structuraldetails of which are immaterial as regards the present invention.; Theends of the arms 11 are provided with eyes preferably open at one sidefor ready engagement with lugs l6, as will be apparent from Fig. 1.

The gun includes a tube l9 adapted to project downwardly into thecontainer, as shown, and upon this tube is mounted a top or cap member2] which ordinarily fits over and closes the top of the spray gunreceptacle and, in this instance, correspondingly fits the top of theadapter member 9. A gasket 22 is employed to insure against leakage atthis point. The top 2| is secured to the tube l9 between lock nuts 23and 24 and the hub 25 connecting the arms I! is interiorly threaded forconnection with a correspondingly threaded sleeve 26 surrounding thetube I9 and provided with a handle 21. It will be apparent that bythreading the sleeve 26 downwardly on the hub 25 a downward pressurewill be exerted upon the cap 2| and an upward pressure on the arms H, tothereby clamp the cover member snugly against the top of the adapter andsecurely attach the gun to the adapter.

In using my invention, after the cover has been removed from. the cancontaining the desired and which includes an upmemb'er 3"Fis-providedwith a groove 32 adapted can; the inner. wall 33 spraying material theadapter member 9 is inserted into position upon the .container and issecurely locked thereto bythe cam levers l3. The spray gun isthen'attached by connecting the terminal eyes'of the arms I! over thestud l6, whereupon the sleeve 26 is screwed down to securely clamp theparts in assembled relation. The apparatus isnow ready for use and themate'- rial may -be sprayed directly from the container'in which it isreceived and without the necessity of pouring it into a spray gunreceptacle. Whenthe job is finished the gun is removed by loosening upthe sleeve 26,whereupon the cam. levers are swung outwardly to releasethe adapter sothat it may be removed from the container-J In manyinstances it is unnecessary to disconnect the gun' from the adapter, asthe gunand adapter may be removed as a unit from the container by simplyreleasing the locking levers. 1

The form of the invention shown in Figs. 5 and 6-is thesame'in-principleas that? previously described but isdesignedj for use in connection witha different of can, designated generallyby reference-character" 28;:andwhich has-a pouring mouth 29 located below the upper end'of thecanproper 'instead oi above; as in-the t'ype previously described; Inthisinst'ance the'a'dapter" nulardepressiomsurrounding the pouringmcuthmy invention-enables a spray gun ofthe'cam. The locking levers-l3 inthis instance engage beneath the head of the' can to lock the adaptermember infpo'sition. The gunis'attached to the adaptermember iiithemanner previously;

explained. V r g It will be apparenti r'om the foregoing that direct-1yincorinection'with'the container'in which the spraying material is"received; and obviously tlienecessit-y" of pouring the material outinto' another 'receptacle and also the necessity of-clean-- ing suchaireceptacle-=after each use is'eli'minated. Gonsiderame-economy; bothin time andmaterial,

: is them-byeffected and the spraying material is at ail ti'm'esiretained in it's? original container without dangeriof spilling or ofcontamination b'y'dust anddirtz 7 V V 'The details-of my inventionillustrated'and described'areobvio'uslycapable-o'f considerable vari-'attached to said member.

to be used? and cooperating ing mouth; of 'a member provided with adownwardly opening annular groove adapted to receive the flared mouth ofthe container, the inner wall of said groove being shaped to enter andfit said throat and the outer wall thereof being adapted to surroundsaid flared mouth, inwardly projecting means carried by said outer wallof the member and movable. laterally of. said container for engagingbeneath the rim of'said mouth to secure said member to'said container, aclosure engageable with the top of said member to close said container,and means carried by said member. cooperable with companion meanscarried by a spray gun whereby said gun may be 2' The combination with acontainer for coating materials having a restricted cylindrical throatterminating in an outwardly flared pouring. mouth, of a member providedwith a downwardly opening annular groove adapted to receive theflared'mouthof 'the container, the inner-wall ofisaid groove'being shapedtoenter and fit-said throat andthe outer wall thereof=beingadapted tosurround said flared mouth, means pivotally" mounted on and carried bysaid-outer-walkof the member for engaging beneath the rimofisaid mouth"to secure'said memberto said container;

and means carried by' said member'and cooper- V able: with" companionmeanscarried by a spray gun whereb'ysaid gun maybeattached to saidmember '3'. The combination with a container for coat! ing materialshaving a;-- restricted cylindrical" t'hroa-t terminating in an outwardlyflared pour ing mouth, of amember shaped to' receive' the flared mouthofthe container and comprisinga 7 depending flange surrounding said mouth;inwardly projecting means carried by said flange and movable laterally"of said container-tor en'- gaging beneath the-rimsaid. member to said'container; and cooperating meanscarried-by said memberand'a spray gun;respectively, whereby" said and" memberimay be secured together. 4-: Thecombination-with a container'forcoat ingmaterials having a pouringmouth; ofaimem ber shaped to receive the mouth'of thecontainer' andcomprising a depending flangesunoun'ding. said mouth; means movablelaterally off said" mouth for engaging said" flange beneath. saidmouthto secure said member to said container,; means carried by saidmember anda spray gun, respectively; whereby saidgun and'membermaybesecured together.

JAMES L. CUNNI HAM:

of said moutli to secure 40':

